public static async System.Threading.Tasks.Task Authenticate(DialogConfiguration dialogConfiguration)
{
_context = new LAContext();
_context.InvokeOnMainThread(async() =>
{
var result = await _context.EvaluatePolicyAsync(LAPolicy.DeviceOwnerAuthentication, Configuration.DefaultFailAttemptNumberExceededMsg);
bool success = result.Item1;
NSError error = result.Item2;
if (success)
{
dialogConfiguration.SuccessAction?.Invoke();
}
else
{
if (error.Code == -2)
{
//user cancel
return;
}
else if (error.Code == -1)
{
//too many failed attempt
dialogConfiguration.FailedAction?.Invoke();
}
}
});
//NSError AuthError;
//if (_context.CanEvaluatePolicy(LAPolicy.DeviceOwnerAuthenticationWithBiometrics, out AuthError))
//{
// Tuple<bool, NSError> result = await _context.EvaluatePolicyAsync(LAPolicy.DeviceOwnerAuthenticationWithBiometrics, dialogConfiguration.DialogDescription);
// bool success = result.Item1;
// NSError error = result.Item2;
// if (result.Item1 == true)
// dialogConfiguration.SuccessAction?.Invoke();
// else
// {
// if (error.Code == -2)
// {
// //User cancel
// return;
// }else if(error.Code == -1)
// {
// }
// //if (error.LocalizedDescription == "Fallback authentication mechanism selected.")
// //{
// // var s = error.Code;
// // result = await _context.EvaluatePolicyAsync(LAPolicy.DeviceOwnerAuthentication, descrptionMessage);
// // if (result.Item1)
// // successAction?.Invoke();
// //}
// }
//}
//else
//{
// _context.InvokeOnMainThread(async () =>
// {
// var result = await _context.EvaluatePolicyAsync(LAPolicy.DeviceOwnerAuthentication, Configuration.DefaultFailAttemptNumberExceededMsg);
// if (result.Item1)
// dialogConfiguration.SuccessAction?.Invoke();
// });
//}
}